Description
100mA boost converter in 5-lead SOT-89 package using both PFM and PWM conversion techniques. In normal operation the ILC6380 runs in PWM mode running at one of three fixed frequencies. At light loads the ILC6380 senses when the duty cycle drops to approximately 10%, and automatically switches into a power-saving PFM switching technique. This maintains high efficiencies both at full load and in system sleep conditions.

FEATUREs
• 85% efficiency at 50mA
• Start-up voltages as low as 900mV
• ±2.5% accurate outputs
• Complete switcher design with only 3 external components
• 50, 100 and 180kHz switching frequency versions available
• Shutdown to 0.5µA Iq
• External transistor option allows several hundred milliamp switcher design

APPLICATIONs
• Cellular Phones, Pagers
• Portable Cameras and Video Recorders
• Palmtops and PDAs